A method for the experimental evaluation of the acoustic characteristics of an engine exhaust system in the presence of mean flow
作者:
M. L. Kathuriya,
M. L. Munjal,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1976)
卷期:
Volume 60,
issue 3
页码: 745-751
ISSN:0001-4966
年代: 1976
DOI:10.1121/1.381147
出版商: Acoustical Society of America
关键词: 8520;2040
数据来源: AIP
摘要:
The paper deals with an exact analysis of standing waves in an impedance tube with mean flow. A method is offered for the experimental evaluation of the various wave parameters. Navier–Stokes equations have been solved for evaluating the volume velocity taking into account mean flow, viscosity, etc. The engine exhaust system has been characterized as an acoustic source with an acoustic pressure and internal impedance. A method is suggested for the evaluation of these hypothetical parameters using the exhaust pipe as an impedance tube.Subject Classification: [43]85.20; [43]20.40.
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